ICD-10-CM > S00-T88 > T36-T50 > T39 > T39.3 > T39.31 > T39.312 T39.312 Poisoning by propionic acid derivatives, intentional self-harm Non-Billable/Non-Specific Codes T39.312A..., initial encounterT39.312D..., subsequent encounterT39.312S..., sequela